Acute myeloid leukemia with t(X;6)9p11;q23);MYB-GATA1 and female sex: GATA1 insufficiency may be insufficient for pathogenesis

Autor: Alexandra E. Kovach, Elena Zerkalenkova, Ludmila Zemtsova, Aleksandra Borkovskaya, Marina Gaskova, Marat Kazanov, Alexander Popov, Liudmila Baidun, Michael Maschan, Alexey Maschan, Paul S. Gaynon, Deepa Bhojwani, Galina Novichkova, Yulia Olshanskaya, Gordana Raca
Rok vydání: 2022
Předmět:
Zdroj: Cancer Genetics. :37-40
ISSN: 2210-7762
DOI: 10.1016/j.cancergen.2021.11.007
Popis: Pediatric acute myeloid leukemia (AML) is genetically heterogenous (Olsson et al., 2016). t(X;6)(p11;q23) is a rare but recurrent chromosomal translocation in infant AML thought to be associated with male sex and basophilic differentiation (Dastugue et al., 1997). Here we report molecular characterization of AML with t(X;6)(p11;q23);MYB-GATA1 in two female infants and demonstrate preserved GATA1 expression in the sample tested. These findings further debunk a concept that this fusion was restricted to males, in whom it disrupts the only copy of the X-linked GATA1 gene, causing presumable complete loss of GATA1 function. Our data also demonstrate the power and efficiency of RNA sequencing for subclassification of leukemia on a clinically relevant timeline.
Databáze: OpenAIRE